Apparatus and method for measuring temperatures inside process vessels containing a hostile environment
US5000580A · kind A · utility
19Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Aug 18, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved apparatus and means for measuring temperatures inside enclosures or conduits containing hot gases laden with entrained solids using a pyrometer. The improvement involves an optical access port consisting of a high strength sight tube, a safety valve, a double sight glass, various purge connections and provisions for optical alignment. A dynamic purge system keeps the optical sight path clear during normal operation, and clears the path if it begins to become occluded during operational upsets within the enclosure or conduit. The improved optical access port is mounted on the exterior wall of the vessel or conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.